I spent the weekend in Second Life trying to crawl into my monitor. The improvements windlight has made visually to my part of the sim has been incredible.
I love the "Glass" setting for water in advanced, but I have noticed that the sim edges are very obvious, no matter how deep i make those edges. Clouding up the water just isn't that nice.
An item on my wish list is to have a feature that obfuscates the sharp edges of a sim shoreline, without having to change the properties of the water. Most likely a tall order, but thought I'd mention it anyways.
-court